Hi, A couple of years ago, I decided to switch from LaTex to ConText. Now I have compiled a lot of documents (Physics syllabi's) which compiles fine in MK-II. I thought I would try to make a switch to MK-IV, mainly because I want to include 3D PRC figures in my documents. I made some test cases to test MK-IV in order to get a handle on the differences between MK-II and MK-IV Some of my observations are *) Numbered formulas, numbered by section, don't seem to work *) I am getting a lot of warnings of identifiers, apparently used more than once, which they are not LuaTeX warning (ext4): destination with the same identifier (name{km1_chapter1_sec1}) has been already used, duplicate ignored Question Are these observations correct, someone else can confirm them ? Question If so, is there a fix, patch, or change in ConText commands/options I am not aware of ? TIA